<template>
  <div class="wrapper">
    <!-- header部分 -->
    <header>
      <p>确认订单</p>
    </header>
    <!-- 订单信息部分 -->
    <div class="order-info">
      <h5>订单配送至：</h5>
      <div class="order-info-address" @click="toUserAddress">
        <p>{{ deliveryaddress ? deliveryaddress.address : '请选择送货地址' }}</p>
        <i class="fa fa-angle-right"></i>
      </div>
      <p>{{ user.userName }}{{ user.userSex | sexFilter }} {{ user.userId }}</p>
    </div>
    <h3>{{ business.businessName }}</h3>
    <!-- 订单明细部分 -->
    <ul class="order-detailed">
      <li v-for="item in cartArr" :key="item.food.foodId">
        <div class="order-detailed-left">
          <img :src="item.food.foodImg" alt="food image">
          <p>{{ item.food.foodName }} x {{ item.quantity }}</p>
        </div>
        <p>&#165;{{ item.food.foodPrice * item.quantity }}</p>
      </li>
    </ul>
    <div class="order-deliveryfee">
      <p>配送费</p>
      <p>&#165;{{ business.deliveryPrice }}</p>
    </div>
    <!-- 合计部分 -->
    <div class="total">
      <div class="total-left">
        &#165;{{ totalPrice }}
      </div>
      <div class="total-right" @click="toPayment">
        去支付
      </div>
    </div>
  </div>
</template>

<script>
import { ref, computed } from 'vue';
import { useRouter } from 'vue-router'; // 引入 useRouter

export default {
  name: 'Orders',
  setup() {
    const router = useRouter(); // 获取 router 实例

    // 静态数据填充
    const user = ref({
      userId: 1,
      userName: '张三',
      userSex: 1
    });

    const deliveryaddress = ref({
      daId: 1,
      address: '北京市朝阳区'
    });

    const business = ref({
      businessId: 1,
      businessName: '东北饺子',
      deliveryPrice: 5
    });

    const cartArr = ref([
      {
        food: {
          foodId: 1,
          foodName: '白菜猪肉水饺',
          foodPrice: 15,
          foodImg: 'src/assets/img/sp06.png'
        },
        quantity: 2
      },
      {
        food: {
          foodId: 2,
          foodName: '角瓜鸡蛋水饺',
          foodPrice: 10,
          foodImg: 'src/assets/img/sp05.png'
        },
        quantity: 1
      }
    ]);

    // 计算总价
    const totalPrice = computed(() => {
      let total = 0;
      cartArr.value.forEach(item => {
        total += item.food.foodPrice * item.quantity;
      });
      total += business.value.deliveryPrice;
      return total;
    });

    // 方法
    const toUserAddress = () => {
      alert('跳转到选择地址页面');
    };

    const toPayment = () => {
      if (!deliveryaddress.value) {
        alert('请选择送货地址！');
        return;
      }
      // 跳转到 payment 页面
      router.push({ name: 'payment' });
    };

    return {
      user,
      deliveryaddress,
      business,
      cartArr,
      totalPrice,
      toUserAddress,
      toPayment
    };
  },
  filters: {
    sexFilter(value) {
      return value == 1 ? '先生' : '女士';
    }
  }
};
</script>

<style scoped>
/* 样式部分保持不变 */
/****************** 总容器 ******************/
.wrapper {
  width: 100%;
  height: 100%;
}

/****************** header部分 ******************/
.wrapper header {
  width: 100%;
  height: 12vw;
  background-color: #0097FF;
  color: #fff;
  font-size: 4.8vw;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
}

/****************** 订单信息部分 ******************/
.wrapper .order-info {
  /*注意这里，不设置高，靠内容撑开。因为地址有可能折行*/
  width: 100%;
  margin-top: 12vw;
  background-color: #0097EF;
  box-sizing: border-box;
  padding: 2vw;
  color: #fff;
}

.wrapper .order-info h5 {
  font-size: 3vw;
  font-weight: 300;
}

.wrapper .order-info .order-info-address {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  user-select: none;
  cursor: pointer;
  margin: 1vw 0;
}

.wrapper .order-info .order-info-address p {
  width: 90%;
  font-size: 5vw;
}

.wrapper .order-info .order-info-address i {
  font-size: 6vw;
}

.wrapper .order-info p {
  font-size: 3vw;
}

.wrapper h3 {
  box-sizing: border-box;
  padding: 3vw;
  font-size: 4vw;
  color: #666;
  border-bottom: solid 1px #DDD;
}

/****************** 订单明细部分 ******************/
.wrapper .order-detailed {
  width: 100%;
}

.wrapper .order-detailed li {
  width: 100%;
  height: 16vw;
  box-sizing: border-box;
  padding: 3vw;
  color: #666;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.wrapper .order-detailed li .order-detailed-left {
  display: flex;
  align-items: center;
}

.wrapper .order-detailed li .order-detailed-left img {
  width: 10vw;
  height: 10vw;
}

.wrapper .order-detailed li .order-detailed-left p {
  font-size: 3.5vw;
  margin-left: 3vw;
}

.wrapper .order-detailed li p {
  font-size: 3.5vw;
}

.wrapper .order-deliveryfee {
  width: 100%;
  height: 16vw;
  box-sizing: border-box;
  padding: 3vw;
  color: #666;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 3.5vw;
}

/****************** 订单合计部分 ******************/
.wrapper .total {
  width: 100%;
  height: 14vw;
  position: fixed;
  left: 0;
  bottom: 0;
  display: flex;
}

.wrapper .total .total-left {
  flex: 2;
  background-color: #505051;
  color: #fff;
  font-size: 4.5vw;
  font-weight: 700;
  user-select: none;
  display: flex;
  justify-content: center;
  align-items: center;
}

.wrapper .total .total-right {
  flex: 1;
  background-color: #38CA73;
  color: #fff;
  font-size: 4.5vw;
  font-weight: 700;
  user-select: none;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
}
</style>